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Actinotaenium silvae-nigrae Desmid Species Outer Hebrides

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Phylum: Charophyta   Family: Desmidiaceae

Actinotaenium silvae-nigrae (A. Rabanus) F.A.C. Kouwets & P.F.M. Coesel 1984

First described by Rabanus (1923: 229) as Penium silvae-nigrae. Later transferred to Actinotaenium by Kouwets & Coesel (1984: 559).Cells elliptic with a slight median constriction. Cell wall striate with longitudinal series of fine pores.
Cell dimensions: L: 45-70 µm; B: 20-28 µm; L/B: 1.9-2.5.
An oligotrophic species found in acidic habitats such as moorland bogs and pools. Quite common.

References: 
Coesel, P.F.M. & Meesters, K.J. (2023 second edition) Desmids of the Lowlands.
Kouwets, F.A.C. & Coesel, P.F.M. (1984) Taxonomic revision of the Conjugatophycean family Peniaceae on the basis of cell wall ultrastructure.
Rabanus, A. (1923) Beiträge zur Kenntnis der Desmidaceen des Schwartzwaldes.
Ruzicka, J. (1981) Die Desmidiaceen Mitteleuropas, Volume 1, Part 2.

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